A) About Your Pharmaceutical RO System
The PHARM40 RO system uses a single pass two or three array membrane
configuration to produce high quality pharmaceutical grade water for a variety
of applications. Six different sizes are available with nominal product flow
rates ranging from 7 to 28 gpm using well water feed with an SDI of less than
3. Realized flow rates will depend on site specific feed water parameters as
discussed in Section III (System Installation) and in Section X (Specifications).
The six models are listed below in order of increasing nominal product flow
rate. To determine the model of your system, check the identification label on
the main control panel. Complete specifications for each model are provided
in Section X at the back of this manual.
Model Product Flow Rate (GPM, Nominal)
P43XX06 7 GPM
P43XX09 12 GPM
P43XX12 15 GPM
P43XX16 19 GPM
P43XX20 24 GPM
P43XX24 28 GPM
Each system consists of a structural steel frame that supports the pressure
vessels containing RO membranes, a multi-stage centrifugal feed pump, a main
control panel with programmable logic controller (PLC), a high voltage panel,
plumbing and instrumentation. The main difference between the models listed
above is the size and number of pressure vessels.
Each RO system is equipped with instrumentation and controls that monitor critical
operating parameters and will shut down the system in the event that one of these
parameters deviates from preset limits. This alarm shutdown capability protects the
equipment from damage and assures the maintenance of high quality product water.
The Process Flow Diagram in the drawing section describes water flow through a
generalized system. Note that the number and arrangement of pressure vessels (which
varies among models) is not specified.
In all PHARM40 RO systems, the feed flow is separated into two flow streams.
The main flow stream of water passes through the RO membrane and becomes
RO permeate or product. The secondary flow stream passes across the surface
of the membrane, carrying away the rejected substances and becomes the
concentrate or reject stream. This reject stream is further separated into two
streams. The first is the RO reject to the waste drain and the second is recycled
back to the RO feed. This reject recycle re-uses some of the otherwise rejected
water to reduce waste and boost the recovery of the RO unit.